102120000102 has 96 divisors (see below), whose sum is σ = 233804817792. Its totient is φ = 33398728704.

The previous prime is 102120000079. The next prime is 102120000109. The reversal of 102120000102 is 201000021201.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120000109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8362333 + ... + 8374535.

It is an arithmetic number, because the mean of its divisors is an integer number (2435466852).

Almost surely, 2^102120000102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102120000102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116902408896).

102120000102 is an abundant number, since it is smaller than the sum of its proper divisors (131684817690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102120000102 is a wasteful number, since it uses less digits than its factorization.

102120000102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12544 (or 12532 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 102120000102 its reverse (201000021201), we get a palindrome (303120021303).

The spelling of 102120000102 in words is "one hundred two billion, one hundred twenty million, one hundred two", and thus it is an aban number.